Benign prostatic hyperplasia (BPH) refers to an enlargement of the prostate. It usually affects urination, but it can also affect the colon and cause stringy or flat stool.

Can prostate cause narrow stool?

Narrowing of the rectum or anus can be caused by enlargement of the prostate in men or may be a complication of anal fissures (tears or cracks), rectal ulcers, Crohn's disease or ulcerative colitis (inflammatory bowel diseases), or anorectal trauma or surgery.

Can enlarged prostate cause bowel issues?

Urethral discharge. Pain and/or pressure in the rectum. Painful defecation (painful bowel movements) Discomfort and/or pain in the genitals, groin, lower back and/or lower abdomen.